C11112331333132311331333133313331333132312323133313231323123232321   >>    C1111233133313231133133313331333133313231232313331323132312323232   <<    C11112331333132311331333133313331333132312323133313231323123232323   >>      C11112331333132311331333133313331333132312323133313231323123232322   >>